Known to be toxic - Toxic to mammals if ingested and is a skin irritant.
Source: Elaine Wolshock Matthew Fook
Vernonia missurica
Missouri Ironweed
Vernonie du Missouri
No seeds available for this plant.
We currently accept seeds for this plant
Bloom Colour: Purple
Bloom Period: Jul - Aug
Max Height: 5.0 feet
Max Width: 3.0 feet (spreads by rhizome)
Light Condition:
More than 6 hours of direct sun a day
Soil conditions:
Tolerates medium soil condition
More than 6 hours of direct sun a day
Tolerates medium soil condition
Lifespan:
Perennial
plants that will that come back year after year
Gardener Experience:
Does not spread uncontrollably
Self-seeding
Does not spread uncontrollably
Self-seeding
Landscape Uses:
No landscape information available.
Ecological Benefits:
Supports pollinators
Butterfly host
Bee host
Supports pollinators
Butterfly host
Bee host
Tolerates:
Tolerates limestone conditions
Tolerates juglone conditions
Tolerates transplantation
Tolerates limestone conditions
Tolerates juglone conditions
Tolerates transplantation
Special Features and Considerations:
This plant is endangered
This plant is endangered
Plant Location
Distribution according to VASCAN
Ephemeral
Native
Introduced
Excluded
Extirpated
Doubtful
Absent
Canadensis
Thrives in Ecozones
- Mixed Wood Plains
Ecological Benefits
Butterflies Supported by Vernonia missurica
- Phragmatobia fuliginosa (Ruby Tiger)
- Vanessa virginiensis (American Lady)
Specialized Bees Supported by Vernonia missurica
- Megachile inimica
- Melissodes denticulatus
- Melissodes subillatus
Plants that grow in similar conditions, that bloom at the same time.
Complementary Plants
- Chamaenerion angustifolium
Fireweed
Épilobe à feuilles étroites - Elymus virginicus
Virginia Wild Rye
Élyme de Virginie - Eupatorium altissimum
Tall Boneset
Eupatoire élevée - Ratibida pinnata
Grey-headed Prairie Coneflower
Ratibida à feuilles pennées - Sanguisorba canadensis
Canada Burnet
Sanguisorbe du Canada
Substitute For Non-Native Plants
- Perovskia Atriplicifolia (Russian Sage)
- Lupinus (Non-Native Lupins)
- Buddleia (Butterfly Bush)
- Delphinium (Delphinium)
- Melilotus albus) (Sweet White Clover)
- Lavandula) (Lavender)
- Hesperis matronalis (Dame Rocket)
- Liatris (Blazing Star Cultivar)
Sowing Information
Download Seed Envelope Labels (PDF)
- Sowing depth: Sow just below surface
- Sow by February
- Stratification duration: 60 days
- Self-seeding
Harvesting and Seed Sharing
- Harvest start month: October
- Harvesting indicator:
- Seeds have become fluffy and can be easily removed by shaking on gently pulling off from stem
- Harvesting:
- Shake seed head in paper bag
- Seed viability test:
- No test needed before donating
- Packaging measure: 1 rounded 1/4 teaspoon
- Seed storage:
- Air dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
- Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
- No harvesting video available at this time.
Toxicity Notes
Toxic to mammals if ingested and is a skin irritant.